pennock



(No Mode 1 3 Sheets-Sheet l.

L. J. PENNOGK.

SPRING GOILING MACHINE.

No. 895,511. Patented Jan. 1, 1889.

V (5.6. Incl/060w- W N. ravens Fhoku-U'lhngrnphor. Wnihington, 0.0

(No ModeL) 3 SheetS-'She=,t 2.

L. J. PENNOOK. SPRING OOILING MACHINE. N0.395,511.- Patented Jan. 1,1889.

NTEST- %M7JZ a N. PETERS, Photo-Lithographer, Wawnglcn'. D.,C.

(No Model.) 3 SheetsSheet 3.

L. J. PENNOCKQ SPRING GOILING- MACHINE. No. 395,511. Patented Jan. 1,1889.

FI'G.7.

FIGS.

fiTT E 5 d I'FH/ENTOR l Jet: 4 77Wailm/ My.

N PE'IERS, Plwmumn n her, waahin mn, 04C.

UNITED STATES PATENT OEETEE.

LEE J. PENNOCK, OF- JAMESTOYVN, NEl/V YORK, ASSIGNOR OF TlVO-THIRDS TOEDDSON A. TAYLOR AND JESSE 1V. EROE, BOTH OF SAME PLACE.

SPRING-COILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 395,511, dated January1, 1889.

Application filed June 8, 1888. Serial No. 276,454. (No model.)

' T on whom it may concern.-

Be it known that 1, LEE J. PENNOCK, a citizen of the United States ofAmerica, residing at Jamestown, in the county of Chautauqua and State ofNew York, have invented certain new' and useful Improvements in Spring-(loiling Machines, of which the following is a specification, referencebeing had therein to the accompanying drawings.

My invention relates to improvements in automatic spring-coilingmachines in which a traveling carriage directs the spring-wire to theconical forming-blocks, upon which it is coiled and one end cut off andthe spring removed; and the objects of my improvement are to providesimple means for. regulating the tension upon the wire; also, to providean irregular motion for the feed-earriage and means for stopping theforming-blocks and throwing off the finished spring, as hereinafterdescribed, and specifically set forth in the claims. I attain theseobjects by the construction illustrati-id in the accompanying drawings,in which Figure 1. is a side view of a spring-coiling machineconstructed in accordance with my invention. Fig. 2 is a horizontalsection showing in plan, the parts supported by the lower half of theframe. Fig. 3 is a longitudinal vertical section on line .r a; of Fig.2, showing the opposite side of the frame and some of the parts shown,in Fig. 1. Fig. 3 is a perspective view of the cone-shaft,retainingspring-latch, and operating-rod. Fig. et is an end elevation of themachine. Fig. 5 is an end view, on. a larger scale, of the wire guideand carriage. ,FTQ'. (i is an end view of the mechanism for reversingthe motion of the shaft carrying the conical block. Fig. 7 is a sideview of the gears mounted loosely upon the shaft of the conical blocksand the clutch in longitudinal section. Fig. Sis an end view of one ofsaid gears. Fig. 9 is a side view of the clutch-lever. Fig. 10 is a sideview of, the arm used in connection with a single cone-block, the conebeing shown in section. Fig. 1']. is a longitudinal section and alsotransverse sections of the pair of conical blocks and a p rspective viewof their inner ends. Fig. 12 is an elevation of the mechanism used toremove the furniturespring from the forming-blocks. Fig. 13 is a sideview, in two positions, of the coneblocks stopping-dog and an end viewof its spring-latch. Fig. 1% is a side view and sec tion of thewire-clamp to regulate the tension thereon. Fig. 15 is a perspectiveview of the small end of the single cone shown in Fig. 10.

In said drawi1'1gs,A represents a frame hav- 6o ing legs to support itat the proper height, and adjacent to one edge of said frame is a narrowvertical frame, A that carries the shaft 16 of the spring-forming block26. This shaft is alternately revolved in one direction by the gear 1 towind the spring and in the opposite direction by the gear 2 to permitthe removal of the spring. These gears are mounted loosely upon theshaft, but are alternately connected with aelutch, 25, adapted to movelongitudinally thereon, but united therewith by a spline. To give motionto the various parts of the machine, the main shaft 4 is mounted insuitable hearings upon the top of the frame A. It carries thedrivingpulley 5 and the elliptical gear 6, that meshes with a similarelliptical gear, 7, on a countershaft, The gears 6 and 7 are preferablyof elliptical form, so as to transmit to the forming-blocks a slowmotion at the time the wire is inserted into their clamp, so as toprevent any strain or breakage of the wire, said elliptical gearsrotating only one revolution for a half-spring or one revolution for adoublecone spring. To rotate the spring-forming blocks, so as to coil aspring, the shaft 3 carries a gear, 8, that meshes with a gear, 9, on acounter-shaft, 10, mounted in suitable hearings on the frame A Thisshaft 10 has keyed thereon a larger gear, 11, that meshes with a pinion,12,revolving on a stud, 13, projecting laterally from an arm, 17, andsaid pinion 1.2 has a sleeve that carries the pinion 14, that gears withthe pinion 1 on the shaft 16 of the spring-forming blocks.

The size of the gears and pinions above stated is such that one-half ofa revolution of gear 8 gives six revolutions to the shaft 16.

This is the smallest number of convolutions generally given tofurniture-springs; but to produce a larger number of revolutions the arm17 has its lower end pivoted 011 the shaft 10, and can, be swunginwardly of the machine and a larger gear substituted for the pinion 14.For this purpose the arm 17 has a side extension that is slotted toreceive a bolt by which said arm is secured to the frame A at anysuitable angle.

To reverse the motion of the cone-shaft 16 by means of its gear 2, thereis secured upon the shaft 10 a gear, 18, that communicates motion to apinion, 1!), Fig. (i, that ll'lOSllQS with a pinion, 20, and the lattermeshes with the gear 2. These pinions and are mounted on studs projectiug laterally from a stationary brace having its lower en d mountedon the shaft 10 and its upper end secured to the frame A To shift theclutch into engagement with the gear 1 and start the machine, there issecured on the counter-shaft a cam, 22, that receives the lower end ofthe lever 23, that is pivoted to a standard at 2-1, and the upper end ofsaid lever has a fork thebranches of which enter the groove in theclutch. Said clutch 25 has yielding clutchpins a projecting from its endto enter recesses b in the face of the gear-s1 and 2. The pins a aresupported by springs, and are thus made yielding, so that if they strikethe face of the gears and do not immediately enter the perforations Z2they will yield and not strain the lever 23 or the cam 22. As abovestated, the clutch is connected to the shaft 16 by a spline, on which itcan slide; but the gears 1 and 2 revolve constantly in oppositedirections upon said shaft. The gear 1, when in clutch, is to start thecoil; but gear 2 is to reverse the motion of the cone-blocks just beforethe spring is cut.

The shaft 10 carries the cone 26; but the outer cone, 27, is carried byan arm, 28, the length of which is adjustable, and is pivoted at 29 tothe frame A in a slot, so that the pivot 29 can always be verticallyover the joint between the two cones even if said cones are made eithershorter or longer. To remove the spring formed on the cones, they aredisconnected by means of the rod 230, pivoted at one end to the arm 28and at the other end to the upper end of a lever, 31, pivoted to an arm,32, of the frame, and said lever has its lower end in engagement withthe cam 33 upon the shaft 3. The groove is so formed in said cam 33 thatthe arm 28 will remain swung outwardly for a short amount of time whilethe spring is being removed. The cam 22 swings the lever 23, so thatwhen the spring is first started it throws the clutch 25 against thegear 1.for six revolutions, (according to the size of gear 14,) and thenit throws the clutch back against gear 2 for about two revolutions tounwind or take the recoil of the spring, and then, the lower cn d of thelever 28 following that portion of the cam equidistant from its twosides, the clutch remains equidistant or unclutehed from either gear 1or 2. The cone 26 is then stationary and the cone 27 swung outwardly.The spring is then cut and removed by means of the half-collar 3 1, Fig.12, attached to an arm, 0, pivoted to the frame at 35, said arm beingpushed laterally by a lever, 30, pivoted to the frame at 37, and saidlever carries at its lower end a roller, between which and the frame Ais forced the beveled upper end of the vertical rod 38. This rod iselevated by the lever 30, pivoted to a stud, d, on a bracket secured tothe frame. Said lever has an adjustable steel end, (Z that is acted onby a finger, c, on the revolving collar 40, mounted upon the shaft 3.

The cutter consists of a stationary jaw, f, secured to the frame, andthe pivoted jaw f having its upper end connected to a rod, F, that hasone end connected toa bell-crank lever, F and the latter has a pendentrod, ii, that has its lower end hinged to one end of the horizontallever i2, pivoted upon a stud, 4:3, projecting from the frame, and theopposite end of said lever is pressed upon by the end of the crank-arm44, secured to the shaft 3. As the grooves on the cones are closertogether near their large ends, the wire has to be fed faster at thesepoints, and consequently an irregular motion of the wirefeed carriage isrequired. This motion is given by a stationary templet or cam, 45, secured to a standard, g, on the side of the frame, and against theirregular periphery of said templet or in the groove of said cam is madeto travel a roller, 16, on one end of the rod 47. Said end of the rod isunited to one end of a link, 9 having its opposite end pivoted, at g toa disk, G, mounted on the shaft G that is continuously revolved by thegear g, meshing with the gear g on the shaft 3. The opposite end of therod 47 is pivoted to the carriage 48, the latter having two legsperforated at their lower end to receive the guide-rod 1-0. The upperend of the carriage has a horizontal arm, 71., and a lug, 7& on the sameside, through which passes a vertical rod, 50 and in which it can moveup and down an inch or two, according to the style of spring to be made.This rod 50 carries be tween a collar thereon and a sleeve, 7L3, upon italso a ring having a pin on opposite sides. One of said, pins 7L" actssimply as a guide to prevent the ring from rotating upon the rod 50; butthe opposite pin follows the curved groove 7r in the guide-plate 51. Theupper end of the carriage is retained connected with the plate 51 bymeans of a pin-and roller pendent from the arm 71 extending laterallyfrom the carriage. The guide-plate 51 is retained connected at each endto the supporting-bar 52 by bolts and nuts, by which it can be adjustedboth vertically or horizontally.

To the upper end of the vertical rod 50 is secured a bent arm, h,carrying at its upper end a steel plug, 72F, perforated for the passageof the spring-wire, and alongside of said plug-is secured upon the arm ha head, 71 carryin three tension-rollers, said head having a cap with ascrew, 7L, to press the journal-box of the upper roller, iii, down. withsaid roller upon the wire.

To stop the revolution of the shaft carrying the cone 26 at the propertime, when said cone has made its back recoil, the shaft 10 carries acollar, in the form of a cam, l' ig. 13, havin a portion of itsperiphery cutaway to form a shoulder or step, i, with which engages aspring-dog, 5-11, pivoted to a pendent lug, 7r, on the fran'ie. YVhilethe spring is being wound the spring-dog 51 is held up out of contactwith the collar-cam 53 by a sliding spring-latch, 55, horizontallysuspended from the frame. This latch is advanced by a sprin coiledthereon and abutting at one end against one of its hangers, and isretracted by a horizontal rod, 7.1 attached to its rear end. Theopposite end of said rod is pivoted to the upper end of a lever, 56, bywhich the latch is retracted. This lever 56 is pivoted to one of theposts of the frame at 57, and has its lower end bent to be nearly incontact with the side of the gear 8, that carries on said side a lug, S,to come at the proper time in contact with the lower end of the le ver56 and move said lower end laterally. When the shaft 1 ii revolves towind the spring, the spring-dog 5-1 will slide over the depressedportion of the cam 53 until it reaches its cylindrical portion, and iselevated by the latter su fiiciently for the end of the latch 55, underthe impulse of its spring, to engage under the spring-dog and permit therotation of the cam 53.

The cone 20, secured to theshaft if, has a square socket, l, at one end,and at the other end a large screw, Z having two prongs, Z, to enter twogrooves in the screw I in the end of the loose cone 27, the latter conebeing free to revolve on a short shaft, Z, secured to the arm 29.

The coil or bundle of wire from. which the springs are made is mountedon a spindle on the rear side of the machine and passes there fromthrough a slot, 5!), in the frame of the machine, and thence under anarm, (32, to the tension-rellcrs m m in the head 71., the roller "IIIbeing above the rollers m and its shaft in an adjustable bearing-bloelr, in, controlled by a screw, 71.", the posit-ion and curve ofthe arm til regulating the bend on the wire before it reaches thetension-rollers.

To form short or half springs, (single conical,) the arm 2% is removedand a shorter arm, (12}, substituted and suspended from a bolt passingthrough a lower slot, 6%, in the frame. The lower end of said arm has asteel pin, U5, to push in a plunger, 60, within the cone. Said plungerhas a notch, 12, to receive the end of the wire before the spring isformed,

and the pressure of the pin against the end of said plunger clamps thewire between it and the end of the cone in a groove formed therein, andthe same pressure causes the end of the wire to become bent in line withthe axis of the cone, and the latter is then revolved. 'When the springis completed, the arm (32 swings back and the spring 1) within the conepushes the plunger out and releases the spring. The opposite end is thencut and the spring removed by the h alf-collar 34, as heretoforedescribed for the doublecone spring.

Having now fully described my invention, I claim 1.. The eimibination ofthe conical-springforming blocks, the wire-carriage, its operating-cam,connecting-rod 4-7, link g and. disk G, substantially as and for thepurpose set forth.

2. The combination of the conical-spring forming blocks and their shaft16, the gear 1, having perforations in its side, and clutch 25, havingspring clutch-pins, with the pinions 12 and 11.3 upon a stud, the gear11 and pinion 9 upon one shaft, and the gear 8 upon the counter-shaft 3,with the clutch-lever 23 and cam 22, whereby the coiling of the springis started, substantially as described.

The combination of the conical-springformjing blocks and their shaft 16,the gear 2, having recesses in its side, and clutch 25, having springclutclapins, with the pinions 15) 20, and gear 18, whereby a back motionis given to the forming-blocks, substantially as described.

t. The combination of the spring-forming blocks with the cutters f f thehorizontal rod F, beltcranlc W, the vertical red at], pivoted lever 12,and revolving collar-arm 4-0, substantially as described.

5. The eoml'iination of the spring-forming blocks, their shaft, andcollar-cam 53, the spring-dog 5 1, and spring-latch with a rod securedto said latch, the pivoted vertical lever 56, and gear 8, having a lug,8 on the side thereof, whereby the forming-blocks are stopped in properlocation, substantially as described.

it. The combination of the spririg-forming blocks and their shaft, thehalf-collar Il-t on one side of said cone, the pivoted arm c, carryingsaid collar, the pivoted lever 36, the vertical rod 3b, having awedgeshaped upper end, the pivoted lever Elf), and revolving arm E,whereby the spring formed on the coneblock is removed, substantially asdescribed.

7. The combination of the spring-forming blocks, the arm 29, carryingone of them, the connecting-rod 30, lever 31, and cam 33, substantiallyas and for the purpose described.

8. The combination of the spring-forming blocks, the gears 1 and 2, theclutch between them, its clutch-lever, the gears 14,12, 11, Si, and S,and cam 22 on shaft 3, the elliptical gear 7 on said shaft, and theelliptical gear ITO 6 on the main shaft, substantially as and for Intestimony whereof I afiix my signature in the purpose described.presence of two Witnesses,

9 The combination of two spring-forming blocks, one of which has itsinner end pro- LEE J. PENNOCK. vided with a screw having two prongs and.the other with two grooves, and a solid cen- Witnesses: tral portionbetween said two grooves, suh- D. D. \VOODFORD, stai'itiall as and Forihe purpose described. A. D. FALCONER.

